Safety-razor



T. M. KANE. SAFETY RAZOR. APPLICATION FILED NOV. 19. 1919.

Patented Oct. 5, 1920.

PATENT OFFICE.

THOMAS MICHAEL KANE, 0F BALTIMORE, MARYLAND.

SAFETY-RAZOR.

Specification of Letters Iatent.

Patented Oct. 5, 1920.

Application filed November 19, 1919. Serial No. 339,045.

T 0 all whom it may concern:

Be it known that I, THOMAS M. KANE, a citizen of the United States,residing at Baltimore, in the State of Maryland, have invented certairnew and useful Improvements in Safety-Razors, of which the following isa specification.

This invention relates to safety razors, and more particularly to thattype in which the cutting edges of the blades re held substantiallyparallel with the axis of the handle.

The invention comprises improvements whereby a plurality of cuttingedges are provided, and whereby the blades are so supported as toprevent clogging of the razor by lather when in use, and it alsocomprises improvements whereby the handling of the razor while in use isfacilitated. The invention also relates to certain details inconstruction which will be hereinafter pointed out.

In the accompanying drawing, which illustrates my invention,

Figure 1 is a side View of the complete razor;

Fig. 2 is a central section through the blade holder and through thesleeve which surrounds the handle;

Fig. 3 is an end View of the blade holder with blades thereon;

Fig. 4 is a plan view of one of the blades; and,

Fig. 5 is an edge view of the same.

Referring to the drawing, A indicates the blade holder, which isrectangular in outline and provided with teeth or serrations 1, at itsopposite edges. The blade holder is preferably formed from two similarsheet metal plates 2, united along their serrated edges, as shown at 3in Fig. 3, and, as shown in the drawing, secured to a bar 4, whichextends longitudinally between the plates, by rivets 5. The ends of theplates, as shown in Figs. 2 and 3, have raised portions 6 and 7, forsupporting the razor blades out of engagement with the intermediateportions of the plates. Flanged guides 8 are provided on the outer endsof the plates, adjacent the raised portions, and

guides 9 are provided at the inner ends of the plates adjacent theraised portions, the latter guides being simply projections withoutflanges.

Each blade, as shown in Figs. 4 and 5, comprises a thin, steel plate 10,having parallel cutting edges 10 and extending along the longitudinalcenter of the plate is a metal fastening strip 11 which, as shown, isdoubled upon itself and the blade lies between the two folds 11 and 11of the strip and is secured to the strip by suitable means, such as therivets 12, which pass through the blade and both folds of the strip. Thepart 11 of the strip, in which the bend is formed, projects beyond oneend of the plate, and the two ends of the strip, 11 and 11 projectbeyond the opposite end of the blade. The strip has parallel edgesthroughout the greater part of its length, but the art 11 graduallywidens toward its end, orming a wedge. In placing a blade upon the bladeholder, the projecting part 11 of the strip is slipped under the flangedguides 8, as shown in Fig. 2, and rests upon the raised portion 6 of theholder, and the projecting part 11 of the strip rests upon the raisedportion 7, while the wedge-shaped end 11* fits between the guides 9. Thestrip is forced endwise by means to be presently described, causing thewedge portion of the strip to bind tightly between the guides 9, and theblade is thus firmly held against endwise movement. v

The central bar 4 in the body of the blade holder has a threaded stud13, at one end, and a cylindrical rod 14 has a threaded axial bore 14which engages said stud. The rod 14 has a flange 14 at one end, and aknurled nut 14, is securely fastened to its opposite end, and a sleeve15 is rotatably mounted upon the rod and held against endwise movementthereon by said shoulder and nut. This sleeve has two diametricallyopposite flanges 15 adapted to bear against and fit over thewedge-shaped ends 11 of the fastening strips. It will be evident that bygrasping the plate holder in one hand and turning the rod 14 through themedium of the nut 14, the rod may be backed away from the head todisengage the flanges on the sleeve from the blades, and by turning therod in the opposite direction, the sleeve may be moved to carry saidflanges over the blades and to then force the blades forward so that theWedge-shaped ends of the fastening strips will bind between the guides9.

Upon the outer end of the sleeve 15 is rotatably mounted a collar 16,and the two ends of a split ring 17 are pivotally connected to saidcollar at diametrically opposite points. This ring 17 is adapted toswing over the outer end of the handle and is large enough in diameterto receive one or two fingers of the operators hand, such as the thirdor fourth finger, or both. This swiveled connection of the ring with theha le is important in using the razor as it enables the operator, whilesupporting the razor on the finger or fingers which extend into thering, to turn the handle and blade holder with the thumb and remainingfingers of the same hand, to any angle desired.

It will be noted from an inspection of Fig. 2, that the blades aresupported out of engagement with the, main portions of the blade holder,and this avoids the trouble which is common with safety razors of havingthe razor become clogged with lather, etc., between the blade and theholder. In the present invention, the lather can pass freely between theblade and the holder and can be readily flushed out by rinsing theholder.in water. It will also be observed that four cutting edges areprovided, by the insertion of two blades, and this avoids the necessityfor fre uently changing the blades. If one cutting e ge happens to bedull, the operator may use another.- It will also be noted that as eachblade has two cutting edges, facing in opposite directions, the operatormay shave downwardly or upwardly with the one hand by using thedifferent edges, and also that as the razor has blades on its oppositesides, each with two cutting edges, the operator may shave upwardly ordownwardly and use either the ri ht or left hand, with equal facility.

referably the flanges 15 will be differently marked, as by numbers oneand two, and the fastening strips on different blades will becorrespondingly marked, so that the owner, by notin the markings mayknow which blades an edges have been used.

What I claim is:

1. A safety razor comprising a handle and blade holder, and a ringhaving a swiveled connection with the outer end portion of the handleand adapted to turn about the axis of the handle and to swing over theend of the handle.

holder having raised portions and guides 2. A safety razor comprising ablade portions and fit within said guides, one of said parts beingwedge-shaped.

6. A safety razor comprising a blade holder having raised portions andguides at its ends, and a blade having a fastening strip projecting fromits ends, the projecting parts of said strip adapted to fit within saidguides.

7. A safety razor comprising a blade holder having raised portions andguides at its ends, and a blade having a fastening strip projecting fromits ends, the projecting parts of saidstrip adapted to fit within saidguides, one of said parts being wedgeshaped.

8. A safety razor comprising a blade holder having raised portions andguides at its ends, and a blade having a fastening strip projecting fromits ends, the projecting parts of said strip adapted to fit within saidguides, one of said parts being wedgeshaped, and means for exertingendwise pressure upon said strip.

9. A safety razor comprising a rectangular blade holder having guides atits ends, a blade having projecting parts at its ends adapted to fitwithin said guides, one'of said parts being wedge-shaped, a rod having athreaded engagement with one end of said blade holder, and a sleeve onsaidrod having a flange adapted to engage one of said projecting parts.

10. A safety razor comprising a rectangular body having raised parts atits ends on its opposite sides, a handle projecting from one end of thebody, and blades havin parts at their ends resting upon said raises endsand removably secured thereto.

11. A safety razor comprising a rectangular body and a handle projectingfrom one end thereof and blades mounted on op posite sides of the body,each blade having two cutting edges extending parallel with the axis ofthe handle.

12. A safety razor comprising a rectangular body, blades on oppositesides of the body, a rod having a threaded connection with one end ofthe body, a sleeve mounted on said rod and rotatable relatively thereto,said sleeve having flanges adapted to project over the body on itsopposite sides and engage the blades.

In testimony whereof I aflix my signature.

THOMAS MICHAEL KANE.

